China's 2015 carbon emissions fell for the second year running, by an amount equal to all of Poland's, while total power consumption increased, writes Lauri Myllyvirta. Credit goes to the massive expansion in renewable energy, with a record-breaking 47GW of wind and solar capacity added.

China reduced fossil fuel power generation by 3% while overall power demand increased 0.5%, by adding 30GW of wind power and 17GW of solar capacity - a new world record for any country ever.

Economic and industrial data released today by the Chinese government's statistical agency indicates the country's carbon emissions likely fell by around 3%.

It also shows the contraction of key heavy industry sectors and the continued expansion of renewable energies are driving a wedge between total energy demand and coal use.

According to the data, China's coal output fell by 3.5% in 2015, thermal power generation by 3%, coal imports by 30%, pig iron output by 4%, coking coal output by 7%, and cement by 5%.

All this suggests that both power sector coal consumption and total coal consumption probably fell by more than 4%. Total oil consumption grew only 1.1% in the first eleven months, gas consumption by 3.7% while cement production (which releases CO2 directly) fell by 4.9%. This indicates a fall of 3-4% in China's fossil CO2 emissions - roughly equal to Poland's total emissions.

This is now China's second year of declining pollution. As reported last year, 2014 carbon emissions were down about 0.7% and the country's coal burn was down some 3%. That was the first fall in China's emissions since the Asian economic crisis more than 15 years ago.

Key drivers ...

The main factors driving China's declining carbon emissions include:

Shrinking heavy industry. Nobody knows for sure how much China's economy grew in 2015, but what seems clear is that heavy industry declined while services and private consumption grew significantly.

Debt overhang. In response to the global financial crisis, China created the largest credit boom the world has ever seen, which ultimately led to the massive energy overcapacity and rapidly growing debt that are now weighing down on the economy.

Booming renewable energy generation. China was able to reduce fossil fuel fired power generation by 3% while overall power demand increased 0.5% by adding 30GW of wind power and 17GW of solar capacity - a new world record for any country ever.

Airpocalypse. The war on pollution continued to impact industry, and it's reasonable to expected that action will be amplified following the horrendous air pollution episodes Beijing experienced this winter. As reported on Energydesk, the notorious China smog was 10% less intense in 2015 than it was the year before.

China has also acted this year to clamp down on coal mining, closing many smaller mines and banning new ones. in an effort to prevent over-supply. Over 1,000 small mines will be closed and the ban on new mining permits will last for three years.

But the new economic reality is not without challenges: the fight between dirty and clean power for space on the grid has only got worse as coal overcapacity continues to grow. New coal fired power stations are still being built owing to perverse economic incentives.

Meanwhile the debate over whether China's high polluting industrial sectors would return to growth was essentially settled last year: They won't. The economic bulls and bears are now divided on whether the service sector and high-end manufacturing can fill the gap left by shrinking state-owned heavy industry sectors, or whether the economy is headed for an outright stagnation.

Though the difference between these two scenarios would have significant consequences for China's citizens, carbon emissions are likely to fall in either case since they come almost entirely from heavy manufacturing.

China's 2016 goals - cut over-supply

The key drivers mentioned above will only intensify in 2016 - last year was just the beginning.

A lot of heavy industry companies have continued to operate despite lack of market demand and making losses. Allowing these 'zombie' operations to wind down, termed' supply-side reform' and 'overcapacity reduction' in Chinese political jargon, is the number one economic policy goal for the coming year, and an inevitability in any case.

Similarly, the growth in public and corporate debt continued to far outpace economic growth in 2015 as the government tried to stimulate the economy through credit expansion. This is clearly an unsustainable trend, and as China begins to deleverage its debt - another key policy goal set in the Economic Work Conference in December - energy intensive investment spending will fall further and reduce energy demand.

Basically, China's CO2 emissions are still on track to to peak and decline well ahead of the government's official targets and projections. Another promising sign for the historic Paris climate agreement finalised late last year.

Lauri Myllyvirta is an author with Greenpeace Energydesk. She tweets @laurimyllyvirta.

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